Valve.



Patented Dec. 3i, I90l. W. B. M. BASHLINE.

VALVE.

(Application filed Apr. 18, 1900. Renewed Nov. 13, 1001.)

(No Model.)

s I 6 k l e 'Tz I, dbfl 7.. 3 L G B u DUB Tu Z I I2 ..,..J I C O d jfla/ m M H m m I M mg p E 1 EEEE ,k i m WITNESSES Q95 iTnn STATES PATENTOFFICE.

TVILLIAM B. M. BASHLINE, OF WARREN, PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent N 0. 690,092, datedDecember 1901' Application filed April 18,1900. Renewed NovemberlB,1901. Serial No. 82,125. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM B. M. BASH- LINE, a citizen of the UnitedStates, residing at Warren, in the county of WVarren and State ofPennsylvania, have invented certain new and useful Improvements inValves; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to valves; and it consists in certainimprovements in the construction thereof, as will be hereinafter fullydescribed, and pointed out in the claims.

The invent-ion is illustrated in the accompanying drawings as follows:

Figure 1 shows a centrally-located vertical section of the valve, andFig. 2 a section at A.

13 marks the valve-ohamber,b the inlet-port, and b the outlet-port.Arranged in the oham-' her is a diaphragm B, through which extends theopening B forming the valve-passage. The opening B has the beveled edge6?, so that it decreases in diameter or tapers toward the top. Arrangedin this opening is the seatring 0, preferably of some seating material,such as rubber. This seat-ring has the upwardly-extending shoulder c,which forms the seat proper, and has the outwardly-extending shoulder orflange c, which engages the diaphragm B just at the edge of the openingB It also hasjthe downwardly-extending shoulder 0 which extends into andregisters with an annular groove d, arranged on the upper edge of thering d. The ring cl forms the upper end of a follower D. This follower Dhas the spider portion D below the ring (Z, through which the matterpassing through the valve passes. At its lower end it is provided with aring (1 from which extends downwardly a shoulder d This shoulder d fitsinto a ring e on the upper edge of a screwplug E. This screw-plug E isscrewed into an opening B in the valve-chamber. This opening B is largeenough to admit the seatring 0 and the follower D. The opening is placedopposite the valve passage, so that the follower and the seat-ring maybe moved to position through theopening B The screw E has a shoulder 6'just outside of the ring 6.

Arranged on this shoulder is a packing-ring F. The opening B is providedwith a tapered shoulder b and the ring F is forced against this taperedshoulder by means of the screw-plug E. The shoulder 6' gives clearancebetween the threads of the screw-plug and the under side of the beveledshoulder Z2 so as to allow the screw-plug to force the packing-ring F toits seat. The packing-ring F is forced into its seat by the screw-plug Eand forms a closure both on the shoulder e and on the beveled shoulder bThis operation of the screw-plug also operates against the follower Dand forces the seat-ring 0 into the opening B The beveled shoulder 12not only centers the seat-rin g in its upward passage, so that it may bereadily moved to place, but also forms a wedged surface against theseat-ring and is forced to form a tight joint. The beveled surface ofthe shoulder b also serves the function of centering the packingring Fas the parts are being assembled, so that there is no danger of the ringcatching on the under side of the shoulder.

The valve G comprises the head 9 and stem-socket g. The head g isscrew-threaded, and on this screw-thread is secured a flangenut H,having the underhanging flange h. The flange it engages the shoulders 71ofthe valve land holds it in place. Fitting into the socket g is thestem-heady of the stem J. The stem J has the upwardly-extending portion,which is preferably square in crosssection to prevent its turning in thedome. It is provided with the internal screw-thread j, in which thescrew-thread portion at of the stem M operates.

Screwed into the upper part of the valvechamber is the dome K, a tightjoint being efiected with the chamber by means of the seat 7c. The dome'K is provided with the opening 7t, which registers with the stem J andprevents it from turning. Secured to the upper end of the dome K is thecap L. The cap L is provided with the beveled seatl and the seat I. Thestem M is also provided with the beveled seat m and seat m which arearranged to fit and form joints with the seats Z and Z respectively. Aspring N, arranged in a groove k is tensioned against the under side ofthe seat m and forces the seats at and and lower the valve G.

follower within the ring e.

m into contact with the seats 1 and Z, thus forming a close joint. Thestem M is provided with the usual handle M, by which it may be turned.

The seat-ring O, follower D, and screwplug E are assembled by placingthe seatring in the groove cl and then placing the The packing F isreadily put in place and the whole passed through the opening B Thebeveled shoulders b and b center the parts so as to insure the enteringof the seat-ring G into the open-- ing B and the packing-ring F- in theopening B The valve is operated in the usual manner. It will readily beseen that by turning the hand-wheel M the screw-thread m will raise Itmay be desirable to dispense with the composition seat formed by theseatring C and use a metallic seat.

1 This can be done by removing the follower and seat-ring. I haveprovided a metallic seat 17 on the upper face of the diaphragm ing-boxand the usual packing.

B. The flange h on the nut H forms a metallic seat with this ring. Ifthe valve is used with the inlet-port at b and the outletportat b, thefollower and seat-ring 0 may be pressed out of the valve and the valveclosed by means of the metallic valve on the seat I). A new seat-ring Ccan then be applied and put into place by unscrewing the valve-stem M asthe screw-plug E is moved into place. In this Way a new seat can beapplied to the valve without cutting ofi the fluid-supply from thevalve. This function is an important one in relation to the use of themetallic seat and in the details of construction which allow of thischange of seat during the presence of the liquid in the valvechamber.

The seats m and m operating upon the cap L, do away with the necessityof the stuif- The spring holds these parts in their seats at all times.

' The follower D and the screw-plug E may be made in one piece;'but Iprefer the construction shown.

What I claim as new is 1. In a valve, the combination of achamber havinga diaphragm, through which there is a valve-opening, said opening'beingarranged with beveled edges, said valve-chamber also having an openingopposite the valve-passage and opposite the larger diameter to saidopening; a seat-ring, ai ranged to fit in said opening; and means forcrowding said ring to its seat, said means and seat-ring being adaptedto enter the opening opposite the valve-passage.

2. In a valve, the combination ofachamber, 13, having the diaphragm, B,in which is the opening, B having the beveled edge, b said chamber alsohaving the opening, E the seat-ring 0, arranged to fit in the opening, Ba follower arranged beneath said seatring, said follower being providedwith means for centering the seat-ring upon it, said follower being alsoadapted to enter the opening, b and the screw-plug, E, for moving saidfollower to its place.

3. In a valve, the combination with the valve-chamber, having avalve-passage and an opening opposite the valve-passage, said openinghaving a beveled edge, 17 a removable seat, adapted to be passed throughsaid opening, opposite the valve-passage; a screwplug for holding saidseat in its place; a packing-ring, F, arranged within the openingopposite the valve-passage and resting upon the screw-plug and againstthe beveled shoulder, b

i. In a valve, the combination of the chamber, having the diaphragm, B,through which is the opening, B said chamber having also the opening, Bopposite the opening, B said opening, B having the beveled shoulder oredge, 19', and said opening, B having the beveled edge or shoulder, bthe seat-ring, C, arranged to fit in the opening, B and having theshoulder, 0 and shoulder, c; the follower, D, having the annular groove,66', into which fits the shoulder, 0 of the seat-ring, and'having alsothe spider portion, D and ring, (1 the screw-plug, E, having the ring,e, and shoulder, 2', and the packing-ring, F, placed on the shoulder, eand arranged to be crowded into position by the action of thescrew-plug,E.

5. In a valve, the combination of the valvechamber, 13, having thediaphragm, B, through which is the valve-passage, B a reopening; and araised metallic seat, b out side of the seat-ring and projecting abovesaid ring for the purposes described.

6. In a valve, the combination of the chamber, 13; the dome K; the cap,L, having the seats Z and Z; the valve; the stem, J, extendingtherefrom; the operating-stem, M, having the screw-thread, m, foroperating upon the valve-head stem, said operating-stem having thevalve-seats, m and WP, arranged to seat upon the seats Z, and l,respectively; andthe spring, N, arranged in the dome and tensionedagainst the stem.

7. In a valve, the combination with the valve-chamber, B, and thediaphragm, B, therein, through which passes the valve-passage, l3 saidchamber also having the opening, B opposite'said passage, saidopenings,B and B having the beveled edges or shoulders, b and 11 respectively;the seat-ring,(l, arranged in the opening, B, and proportioned to form afit therewith, said ring being provided with the shoulder, 0, arrangedunder the shoulder, 5 and the shoulder, 0 the follower, D, comprisingthe spider portion, D, the ring, (1, in which is arranged the annulargroove, 01', the groove, (1, being arranged to receive the shoulder, 0and the ring, d having the projecting shoulder, d the screw-plug, E,arranged in the opening, B having the ring, e, encircling shoulder, (1and also provided with the shoulder, e, outside of the ring, 6; thepacking-ring, F,

movable seat-ring, 0, arranged to fit in said arranged on the shoulder,e, and against the shoulder, b; the valve, G, having the screw threadedhead, and socket g; the flangenut, H, arranged on the head, g, havingthe underhanging flange, h; the valve-seat, I, provided with theshoulder, 2', arranged within the flanges, h; the stem, J, having thehead, j, arranged in the socket, g, and the screw-thread, 7"; the dome,K, secured to the upper part of the chamber, B, and having therectangular opening, 70, for engaging the extension, J, and having thegroove, W; the stem, M, having the screw-threaded portion,

m, for operating in the screw-thread, j, of

